import book.Book;
import book.BookList;
import user.AdminUser;
import user.NormalUser;
import user.User;

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        BookList bookList = new BookList();

        User user = login();//向上转型
        //这里调用谁的菜单
        while(true){
            int choice =user.menu();
            //User最终指向哪个对象不确定？？
            //登录
            //根据choice来调用指定的操作
            user.doOperation(choice,bookList);
        }
    }

    public static User login(){//向上转型
        Scanner scanner = new Scanner(System.in);
        System.out.println("请输入你的姓名: ");
        String name = scanner.nextLine();

        System.out.println("请输入你的身份:1代表管理员,0代表普通用户");
        int choice = scanner.nextInt();
        if(choice == 1){
            return new AdminUser(name);
        }else{
            return new NormalUser(name);
        }
    }
}
